Coupling.



PATBNTED JAN. 7, 1908.

U. HASKINS4 COUPLING.

APPLICATION FILED MARA, 1007.

Vaal

ffozucun URI HASKIlN-, OF'CHATTANOOGA, TENNESSEE GOUPLING.

No. eremiti.`

To all whom it may concern:

Be it known that I, Uni HASKINS, a citizen of. the Unite-d States, residing at Chattanoo a, in the county of Hamilton and State 'of ennessee, have inventedcertain new and 4useful Improvements inv Couplin Us; and l do declare the followin to be a full, cleai',l and exact description of the inventionsuch as will enable others skilledin the art to which it appertains to make and use the same.

My invention is an improved coupling, s

, which may be employed to couple the en of shafts together, or to secure a wheel or v4other maahine element on a shaftand comprises an element having an opening toreceive' a shaft', said'o enincr presenting a cam surface to the sha t an also presenting a gripping orv rbinding surface, .and a wedging element in'said opening between the shaft and .he cam surface'of the first-mentioned eleinent to bind the shaft against the saidbinding or gripping surface, and it further consists in the `construction, combination and.

arrangement of` devices hereinafter described and claimed.

In the accompanying drawings-Figure 1 is partly an end elevation and partly a transverse sectional view of aY coupling embodying my invention; Fig. 2 is a longitudinal sectional view of the saine, taken 'on the plane indicated by the line'a-L of Fig. 1;

' and Fig. 8 is a sectional perspective view cf the coupling element.'

My invention comprises essentially a shaft 1, a coupling element 2 and wedging elements 3. The con ling element is here snown as a cylindrical s eeve for coupling the ends of the s afts 1 to ther. It may, however, constitute the ub of a Wheel ora portion of a machine element, which it may e designed to lock on a shaft and I do notliinit myself in this particularl- Thecoupling element 2 has a lon itudinal openin shaft .or s afts. The sai opening is of irf regular form presenting on one side a cam surf-ace 5, opposed to a portieri of the shaft and converging thereto in opposite directions and also presenting a binding or gripping ortion of the shaft,

angles 7 being formed etwcen said surfaces 5 and 6. l here show two wedging elements 3 in connection with each shaft and show such wedging elements as cylindrical rollers.

VThe saine are placed in the opening 4 bei ative rotation,

Specification of Letters Patent'.

Appleman and rmi 4.1907. sans it. 360.504.

4 to receive they ratentealmn. 7, reos.

tweentlie cam surfaces 5 and the-shaft, and the said wcilging element on any attem "t to turn. either the element 2 or the shat independently of the other will be forced byl the cani surface 5 against the shaft and cause the latter to be forced against the gripping or binding surface so that said element/2. will be elfectually locked to the shaft. The.

pairs of rollers or Wedging elements 3 are separated by bowed fiat springs 8, which are disposedl longitudinally between themv and bear between the shaft and the cam surface 5 presented by the coupling element 2;

To lock the coupling element 2 against longitudinal movement on the shafts or either of them, such shaft or shafts is or are provided with an annular groove or grooves 9, and the coupling member is provided in its binding or gripping surface 6 with a flange or ianges 10 to enter said groove or grooves before the rollers 3 are inserted between the shaft or shafts and. the cani surface 5.A To prevent..

the rollers from moving longitudinally in one direction, thecoupling element 2 is provided with e flange 11 in its cam surface 5, and to prevent them from moving in opposite directions, said coupling element is here shownas provided with detachable lates 0r capsv12, cach of which has a ke -s ia ed opening 13 to receive a similarly-s Yape projection on the eiidcf the coupling member, and a Setscrew 14.

From the :foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood Without requiring amore extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the principle or sacrificing an of the advantages of this invention, as de ined by the appended claims.

Having thus described my invention, what l claim as new, and desire to secure by Letters-Patent, is,-

1. In a device of the class described, a

shaft, a member having a longitudinal bore forni a space or chamber, a pair of wedging rollers arranged in said space, and adapted for frictioiially holdi'ig the parts against re1- springs disposed between the.

- movably attached t the ends of the member pair off Wedging rollers, and cap' plates re'- between the opposed faces cf the Wedging rollers, and cap plates detachablyi'engaged with Athe ends of the coupling member.

In testimony whereof I have hereuntomset 15 my hand in presence of two subscribing Wit for retaining the Wedging rollers in place.

2. In a device of the class described, a air i of shafts having marginal grooves, 'a coup ing;

member arranged on the shafts and having lnesses. I

a shaft-receivingbore provided with ribs to l .-fit in said grooves, said bore being eccen- URI HAMHNS' trically enlarged at one side of the shafts W'itnesses:

to form a space or ohmlxbor. Wedfling rollers H."\CLEAN,

arranged in said chamber. aprngs disposed k 0.", DroveA 

